Build and test

Create release notes markdown output for `diff` command #1827

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Run time

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Job	Run time
test (ubuntu-latest, 3.9)	37m 18s
lint (3.9)	26s
test (ubuntu-latest, 3.10)	39m 33s
lint (3.10)	32s
test (windows-latest, 3.10)	45m 18s
	2h 3m 7s